/*
Copyright 2008-2010 Gephi
Authors : Eduardo Ramos <eduramiba@gmail.com>
Website : http://www.gephi.org

This file is part of Gephi.

DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

Copyright 2011 Gephi Consortium. All rights reserved.

The contents of this file are subject to the terms of either the GNU
General Public License Version 3 only ("GPL") or the Common
Development and Distribution License("CDDL") (collectively, the
"License"). You may not use this file except in compliance with the
License. You can obtain a copy of the License at
http://gephi.org/about/legal/license-notice/
or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
specific language governing permissions and limitations under the
License.  When distributing the software, include this License Header
Notice in each file and include the License files at
/cddl-1.0.txt and /gpl-3.0.txt. If applicable, add the following below the
License Header, with the fields enclosed by brackets [] replaced by
your own identifying information:
"Portions Copyrighted [year] [name of copyright owner]"

If you wish your version of this file to be governed by only the CDDL
or only the GPL Version 3, indicate your decision by adding
"[Contributor] elects to include this software in this distribution
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However, if you add GPL Version 3 code and therefore, elected the GPL
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Contributor(s):

Portions Copyrighted 2011 Gephi Consortium.
 */
package org.gephi.datalab.plugin.manipulators.nodes;

import javax.swing.Icon;
import org.gephi.datalab.api.GraphElementsController;
import org.gephi.datalab.plugin.manipulators.nodes.ui.LinkNodesUI;
import org.gephi.datalab.spi.ManipulatorUI;
import org.gephi.graph.api.GraphController;
import org.gephi.graph.api.GraphModel;
import org.gephi.graph.api.Node;
import org.openide.util.ImageUtilities;
import org.openide.util.Lookup;
import org.openide.util.NbBundle;

/**
 * Nodes manipulator that links at least 2 different nodes creating edges.
 * Asks the user to select a source node and whether to create directed or undirected edges.
 * It will create edges between the source node and all of the other nodes.
 * @author Eduardo Ramos <eduramiba@gmail.com>
 */
public class LinkNodes extends BasicNodesManipulator{
    private Node[] nodes;
    private Node sourceNode;
    private static boolean directed;
    private static GraphModel graphModel;

    public void setup(Node[] nodes, Node clickedNode) {
        this.nodes=nodes;
        this.sourceNode=clickedNode;//Choose clicked node as source by default (but the user can select it or other one in the UI)

        GraphModel currentGraphModel=Lookup.getDefault().lookup(GraphController.class).getModel();
        if(graphModel!=currentGraphModel){//If graph model has changed since last execution, change default mode for edges to create in UI, else keep this parameter across calls
            directed=currentGraphModel.isDirected()||currentGraphModel.isMixed();//Get graph directed state. Set to true if graph is directed or mixed
            graphModel=currentGraphModel;
        }
    }

    public void execute() {
        GraphElementsController gec = Lookup.getDefault().lookup(GraphElementsController.class);
        gec.createEdges(sourceNode, nodes, directed);
    }

    public String getName() {
        return NbBundle.getMessage(LinkNodes.class, "LinkNodes.name");
    }

    public String getDescription() {
        return NbBundle.getMessage(LinkNodes.class, "LinkNodes.description");
    }

    public boolean canExecute() {
        return nodes.length>1;
    }

    public ManipulatorUI getUI() {
        return new LinkNodesUI();
    }

    public int getType() {
        return 500;
    }

    public int getPosition() {
        return 100;
    }

    public Icon getIcon() {
        return ImageUtilities.loadImageIcon("org/gephi/datalab/plugin/manipulators/resources/edge.png", true);
    }

    public Node[] getNodes() {
        return nodes;
    }

    public Node getSourceNode() {
        return sourceNode;
    }

    public void setSourceNode(Node sourceNode) {
        this.sourceNode = sourceNode;
    }

    public boolean isDirected() {
        return directed;
    }

    public void setDirected(boolean directed) {
        LinkNodes.directed = directed;
    }
}
